Question

How do you write $0.4$ as a fraction?

Answer 1

Express the given decimal number as a fraction

Given decimal number: $0.4$.

Rewrite the number in $\frac{p}{q}$ form, here $q\ne 0$.

$0.4=\frac{0.4}{1}$

Multiply both numerator and denominator by $10$.

$\therefore \frac{0.4}{1}=\frac{0.4\times 10}{1\times 10}=\frac{4}{10}=\frac{2}{5}$

Therefore, $0.4$ can be expressed in fraction form as $\frac{2}{5}$.